title: Complications of femtosecond laser-assisted re-treatment for residual refractive errors after LASIK.
abstract: OBJECTIVE
  To report complications of femtosecond laser-assisted re-treatment by the creation of side cuts within the old flaps for residual refractive error after primary LASIK in two patients.
  
  
  METHODS
  Case report.
  
  
  RESULTS
  Three eyes of two patients had complications with a circumferential sliver of stromal tissue displaced during surgery due to overlap of old and new side cuts. The displaced tissue was repositioned and corneal anatomy was restored. Two of three eyes demonstrated improvement in the uncorrected visual acuity, whereas one eye lost two lines of corrected visual acuity due to loss of tissue at side cut resulting from flap manipulation, which was done at 1 week.
  
  
  CONCLUSIONS
  These cases demonstrate a complication of femtosecond laser-enabled side-cut for LASIK enhancement and factors that may lead to this complication and precautions to avoid it.
authors.affiliation: Miller School of Medicine, University of Miami, Miami, FL, USA.
authors.forename: Pravin K
authors.initials: PK
authors.lastname: Vaddavalli
authors.forename: Vasilios F
authors.initials: VF
authors.lastname: Diakonis
authors.forename: Ana P
authors.initials: AP
authors.lastname: Canto
authors.forename: William W
authors.initials: WW
authors.lastname: Culbertson
authors.forename: Jianhua
authors.initials: J
authors.lastname: Wang
authors.forename: Vardhaman P
authors.initials: VP
authors.lastname: Kankariya
authors.forename: Sonia H
authors.initials: SH
authors.lastname: Yoo
mesh_terms: D003319:Corneal Stroma / Q000473:pathology / Q000601:surgery*; D006801:Humans; D020731:Keratomileusis, Laser In Situ / Q000009:adverse effects*; D054018:Lasers, Excimer / Q000009:adverse effects / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000175:diagnosis / Q000601:surgery*; D011183:Postoperative Complications / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D012029:Refraction, Ocular; D012086:Reoperation / Q000379:methods; D013524:Surgical Flaps